{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["GENE"], "input": "Expression of the human T cell receptor ( TCR ) alpha gene is regulated by a T cell - specific transcriptional enhancer that is located 4 . 5 kilobases ( kb ) 3 ' to the C alpha gene segment ."}
{"GENE": ["T cell receptor ( TCR ) alpha gene", "C alpha gene segment"]}